No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2024.
Serves about 44,899 people (13,172 connections) with surface water bought from another water system.
From EPA's record for CA1510015. PurityMap is independent of Oildale MWC.
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5 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.0823 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.0975 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2024 | Haloacetic acids (HAA5) | 0.0737 mg/L | 0.060 mg/L | Resolved |
| Oct–Dec 2023 | Haloacetic acids (HAA5) | 0.0692 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2023 | Haloacetic acids (HAA5) | 0.0609 mg/L | 0.060 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to November 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 12.2 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-13 to 2023-11-28 | UCMR5 Analytical Results: OILDALE MWC (CA1510015) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Oildale MWC's phone number on EPA record is 661-399-5516. Its mailing address is 2836 MCCRAY ST, BAKERSFIELD, CA 93308.
According to EPA's record, Oildale MWC uses surface water bought from another water system.
EPA's record shows 5 health-based violations for Oildale MWC in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2024. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Oildale MWC's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Oildale MWC. Its phone number on EPA record is 661-399-5516. Its mailing address on EPA record is 2836 MCCRAY ST, BAKERSFIELD, CA 93308. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.